[gtk] (5 commits) Non-fast-forward update to branch wip.win32.fixes

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'wip.win32.fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  2ae1bc8... media/gstreamer: Support using GL for video for Windows
  8dbedb6... gtkgstsink.c: Support EGL on Windows as well
  18d6d8d... gtkgstsink.c: Fix up thinko
  04fa73f... gtkgstsink.c: Avoid g_setenv()
  7049857... gtkgstsink.c: Win32: Limit GL API to gles2 when using EGL
  7184dd0... gstglsink.c: Some cleanups
  64495e3... demos/gtk-demo|widget-factory: Temporarily disable gui_app 
  9e78a68... gtkgstsink.c: Check GST_GL_HAVE_PLATFORM_EGL correctly
  c149550... gtkgstsink.c: Call gst_gl_display_filter_gl_api() always on
  adf7d6f... gtkgstsink.c: Determine GstGLAPI using GDK if needed
  1f609bd... gtk/meson.build: Fix linking on Visual Studio 2013
  3127473... media-gstreamer: Provide fallback mode for playback

Commits added to the branch:

  e133ef4... demos/gtk-demo|widget-factory: Temporarily disable gui_app 
  dc51d55... media/gstreamer: Support using GL for video for Windows
  32423a3... gtkgstsink.c: Support EGL on Windows as well
  1f54da5... media-gstreamer: Provide fallback mode for playback
  2be1218... gtk/meson.build: Fix linking on Visual Studio 2013